It is unlawful for the holder of a beer permit or any employee of a person engaged in the business of selling beer to be a person who has been convicted of any violation of the laws against possession, sale, manufacture or transportation of intoxicating liquor or any crime involving moral turpitude, within the last 10 years. T.C.A. § 57-5-301(a). The 10-year period begins on the date of conviction and ends 10 years from that date. Attorney General Opinion U90-116 (8/15/90).